Camcorder wars, rock stars help with your music, is the PlayStation 3 a Trojan Horse for Blu-ray?, and much more

This week's print edition of the Technology supplement is online too..

• Don't look now ...
  Thinking of buying a camcorder? You may have to choose between four storage and two video formats, as rival companies bid for supremacy. Jack Schofield explains.
• Stars compose new ways to use music
  Do you want to write music, or remix a band's tunes and then find similar stuff? Three top rock stars are eager to help.
• Minister listens to Guardian's campaign call
  Free Our Data: Baroness Ashton at the Department for Constitutional Affairs hears our case for the liberation of government information.
• Making a play for broadband Broadway
  Aleks Krotoski: By Jove, I think I've cracked it. I think I've found the way to break through the geek stereotype that dogs the games industry. Pay attention, Sony, this one's for free - Computer Game: The Musical.
• Games
  MotorStorm | Resistance: Fall of Man | Infernal
• Newly Asked Questions:
  • What is badware and why should I worry about it?
    It's stuff that sneaks on to your PC and messes with it. At its least malevolent, badware infests your PC with popups and tracks your surfing details via an application that has crept on to your system without your knowledge or permission.
  • Is the PlayStation 3 a Trojan horse to help sell Blu-ray films?
    It certainly looks that way to us - particularly after talking to Matt Brown, executive vice president of Sony Pictures Europe, whose job it is to persuade us all to buy Blu-ray media.
• How to feed a killer appetite with RSS
  Charles Arthur: In my ongoing quest to find a way to rescue the mobile operators from their buyers' regret at having splashed out £22bn on 3G licences, I'm always on the lookout for what could be called the "killer app" for phones.
• Read me first
  Internet censorship, at home or state-run, is a political hot potato, says Seth Finkelstein.
• Technobile
  Linda Jones: It's all very well these bods dreaming up all-in-one devices, but using them can be a nightmare.
• How to crack the problem of internet password security
  Jack Schofield: It's a good bet that if you have 20 online accounts, you don't have 20 different passwords. In fact, according to a survey by Kaspersky Lab, most people (51% of us) only have between one and four passwords for 20 accounts. We are insecure.
• The 'fab' machine that could spark an industrial revolution
  Meet the open source, low-cost machine that can 'print' 3D objects for you at home.
• Ask Jack
  Send your questions and comments to Jack.Schofield@theguardian.com. Published letters will be edited for brevity, but include full details with your query.
  Please visit our Ask Jack weblog for daily updates.
• Newsbytes
  PCs targeted by criminals | Creativity unleashed | Sense-less gaming | Growing spam problem | Chinese and chips | Harvard degree for drop-out | It's purrr-ty time! | Swappers united
• Letters and blogs
  Send your letters, comments, questions and rants to tech@theguardian.com, and please include your address and post town.